653 research outputs found
Determination of the Ileal Digestibility of Proteins and Amino Acids from Biscuit Bran and Wheat Gluten in Swine
To determine the apparent (AIDCP) and standardized (SIDCP) ileal digestibility coefficients of the protein and the apparent (AIDAA) and standardized (SIDAA) ileal digestibility coefficients of amino acids from biscuit bran and wheat gluten were used six castrated males swine in growth, on average weight from 22 to 60kg, with a T cannula on the terminal ileum, distributed in a randomized block design with three treatments, two periods and two repetitions per period. Each animal was considered a repeat. Treatments consisted of a protein free diet (PFD) for determination of the endogenous loss, PFD + biscuit bran (BB) and PFD + wheat gluten (WG). Each period lasted for six days, five days of adaptation of animals to the diet and 24 hours of collection of ileal digestion. The AIDCP of BB and WG were 82.33 and 90.07%, respectively and the SIDCP of BB and WG were 89.17% and 95.60%, respectively. The SIDAA were on average 80.84% (lysine), 83.94% (threonine), 90.57% (methionine + cystine) and 87.15% (valine) to BB. The SIDAA for the WG were on average 91.01% (lysine), 90.97% (threonine), 95.82% (methionine + cystine) and 90.04% (valine). The SID of protein and essential amino acids and non-essential elements identified in this study were on average, respectively, 89.17%, 88.54% and 89.20% of biscuit branand 95.60%, 93.71% and 89.20% of wheat gluten
Planck pre-launch status: calibration of the Low Frequency Instrument flight model radiometers
The Low Frequency Instrument (LFI) on-board the ESA Planck satellite carries
eleven radiometer subsystems, called Radiometer Chain Assemblies (RCAs), each
composed of a pair of pseudo-correlation receivers. We describe the on-ground
calibration campaign performed to qualify the flight model RCAs and to measure
their pre-launch performances. Each RCA was calibrated in a dedicated
flight-like cryogenic environment with the radiometer front-end cooled to 20K
and the back-end at 300K, and with an external input load cooled to 4K. A
matched load simulating a blackbody at different temperatures was placed in
front of the sky horn to derive basic radiometer properties such as noise
temperature, gain, and noise performance, e.g. 1/f noise. The spectral response
of each detector was measured as was their susceptibility to thermal variation.
All eleven LFI RCAs were calibrated. Instrumental parameters measured in these
tests, such as noise temperature, bandwidth, radiometer isolation, and
linearity, provide essential inputs to the Planck-LFI data analysis.Comment: 15 pages, 18 figures. Accepted for publication in Astronomy and
Astrophysic
Desempenho de novilhos Simental alimentados com silagem de sorgo, cana-de-açúcar e palhada de arroz tratada ou não com amônia anidra.
Avaliou-se o desempenho de novilhos alimentados com dietas contendo palhada de arroz amonizada, palhada de arroz + uréia, cana-de-açúcar + uréia e silagem de sorgo. Utilizaram-se 16 novilhos, Simental PO, com peso vivo médio de 400 kg, distribuÃdos em delineamento inteiramente casualizado. O experimento teve duração de 88 dias, sendo 15 de adaptação e 61 dias de avaliação, divididos em três perÃodos de 21 dias. O consumo total de MS, que variou de 7,1 a 10,0 kg/dia, diferiu entre as dietas, registrando-se maiores consumos para os animais que receberam dietas contendo palhada de arroz amonizada e silagem de sorgo, que, por sua vez, não diferiram entre si. A conversão alimentar não diferiu entre as diferentes dietas, registrando-se valor médio de 6,6. Observou-se maior ganho de peso para os animais que receberam palhada de arroz amonizada (1,59 kg/dia) em relação à palhada mais uréia (1,25 kg/dia). O efeito da amonização, melhorando o valor nutritivo da palhada de arroz, resultou em maior consumo voluntário deste volumoso e, conseqüentemente, em maior ganho diário de peso vivo dos animais, em relação à palhada de arroz não-tratada e suplementada com uréia
Planck pre-launch status: Low Frequency Instrument calibration and expected scientific performance
We give the calibration and scientific performance parameters of the Planck
Low Frequency Instrument (LFI) measured during the ground cryogenic test
campaign. These parameters characterise the instrument response and constitute
our best pre-launch knowledge of the LFI scientific performance. The LFI shows
excellent stability and rejection of instrumental systematic effects;
measured noise performance shows that LFI is the most sensitive instrument of
its kind. The set of measured calibration parameters will be updated during
flight operations through the end of the mission.Comment: Accepted for publications in Astronomy and Astrophysics. Astronomy &
Astrophysics, 2010 (acceptance date: 12 Jan 2010
Estimação de parâmetros genéticos em linhagens endogâmicas recombinantes de sorgo sacarino.
Hábito alimentar de espécies de Thysanoptera associadas ao cajueiro.
bitstream/item/211059/1/AAC19006.pd
A mild and efficient method for the preparation of 3-(2'-Aminoaryl)pyrazoles from 4-chloroquinolines
We describe a mild and efficient method for the formation of 3-(2'-aminoaryl)pyrazoles in excellent yields from reactions of 4-chloroquinolines with hydrazine. These heterocyclic ring opening reactions occur under much milder conditions then previously described
Identificação de QTLs associados ao teor de umidade e a cor de nervura em linhagens endogâmicas recombinantes em sorgo.
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